@Hillie
They definitely looked it up and it is the actual ETA (they offered to show me my order on the Lexus system next time I go into the dealership).
It seems that others on here that ordered their 450h+ in February are lucky if their cars are en route.... I ordered one on 19/02, it's still showing "order in progress" on the app and the dealer informs me delivery is estimated as Dec 22 🙄